Plagiarism Today aka Jonathan Bailey says (in a rantish videoblog post) that the difference between the 2009 57% error rate in takedown requests submitted to Google vs the 3% error rate last year is technology. Takedown requests used to be faxed in, now they are submitted via a form.
At least I think that’s what he said. It was hard to parse the way he said it.
I recommend the Plagiarism Today blog. Strong-IP views and blogging well don’t go together often.